Shearing device and safe attachment for auxiliary vault-door locks



Au ..25,'1925. P w. c. DlLLON Y Y SHEARING DEVICE A ND-S AFE ATTBHMENT FOR AUXILIARY VAULT DOOR LOCKS Filed A iil 17, 1922 Patented Aug. 25, 1925.

amen STATES. PATENT oF '1cg,j.

WILLIAM C, DILLON, OF FORT DODGE. 10W A, ASSIGNO-B T0 DILLON BANK PBQTECTIOlfT SERVICE, A CORPORATION.

SHEARING DEVICE AND earn ATTACHMENT FOR AUXILIARY VAULT-DOOR Locxs.

Applicationiiled April 17, 1922; Serial No. 553,593.

T 0 (171 107mm it may concern:

Be it known that LJYILLIAV C. DILI/OX, a. citizen of the l'nited States, and a resident of Fort Dodge in the county of \Vebster and State of Iowa. have invented a certain 'new and useful Shearing Device and Safe Attachment Locks, of which the following is a specififor Auxiliary Vault-Door cation.

The, object of m v invention is to provide a shearing device attachment for auxiliary vault and safe door locks, the parts being of simple durable and comparatively inex )ensive construction.

11v invention relates to an attachment especially designed to shear a flexible element for releasing an auxiliary locking device when the COlIllJIJatlOD lock on the z'ault or safe door is pushed inward.

Still another object is to provide a frangible plate extending over the combination lock and so arranged that when the combination lock is pushed inward, the plate.

will become broken and release the auxiliary locking (193168.

\Vith these and other objects in View, my

invention consists in the construction, ar-

rangeme'nt and combination of the various parts'of my device. wherebv the ob ects contemplated are attained, as hereinafter more fully set forth. pointed out 1n my claims,

and illustrated in the accompan drawings,

in which: Figure 1 is an elevation of a portion of a vault. door with in) improved shearing device shown thereon, Figure 2 is an enlarged view of the shearing device extended over the combination mechanism. i v I Figure 3 is a sectional view taken on line 3-3 of Figure 9..

v Figure l is a detailed sectional view taken. on line 4-4 of Figure 2. I 1 Figure 5 is an elevation of a shgthly modified form of my device; and

Figure 6 is a sectional view taken. on line ('-6 Figure 5.

In the accompanying drawings, I have used the reference numeral 10 to indicate generally a 'vaultor safe door which is provided with an inwardly extendingfiange 11 on its inner s'idenea'r its edge.

I have used the reference numeral 12 to in dicate the door jamb; A bolt locking mech- 'trated in the Horspool Letters Patent, dated Januarv 13. 1922. Number 1.402.499, and my' Letters Patent dated J anua1fv'31 1922, Numher 1,404,937..

The auxiliary locking device is designed to coact with the bolt mechanism for preventing their unauthorized movement. In order to hold the auxiliary locking device normally inactive, I provide a flexible element 16.

The flexible element 16 has one of its ends secured to the locking bar of the auxr ili'ar y lock device and has its other end-an lVhen the flexichored to thedoor as at 17 lole element 16 is broken, the auxiliary lockmg device will operate and move into the path of travel of the bolt mechanism for preventing its operation 7 In order to provide a means for breaking or shearing the flexible connection when the combination lock 11- is punched inward, 1 have provided the following described mechanism. i

I provide a guide stud 18 which may be screw threaded into the vault door 10. The

guide stud 18 is arranged near one side of the combination lock 14. On the opposite side of the combinationlock 14 and screwed into the vault door 10 is a bolt 19. A sleeve 20 is extended around the bolt 19. Connect- V ing the guide stud 18 and the bolt '19 is: a plate 21.

The plateQl is provided with a pair of openings which receive the guide stud 18 and the bolt 19. One end of the plate 21 rests upon the sleeve 20. The guide stud 18- is provided with a small opening 2-2, the purpose of which will be hereinafter more fully set forthx x i.

flexible element 16. The arrangement just mentioned causes the flexible element to be as Extending through the opening 22 is the:

door 10.

extended across the combination lock 14.

The flexible element also tends to'hold the end ofthe plate on the guidestud 18 in 'posi tion. A I A small tube 23 of very sott material is extended into the opening 22 and hasthe the combination lock by some one m thorized to do so without the danger of shcariug or weakening the flexible element 16. The soft tube will oli er no resistance to the great amount of force. which is rcquircd to punch the combination lock inward and. permits the flexibleelement 16 to be severed. v

hefiexiole element is extended across the combination lock and through the guide stud 19 and will permit theopcration of the locking device A when the wire is burned.

Sometimes burglars attempting to gain access into the vault will punch the combination lock, or burn around the combination lock so tha the bolt mechanisms will be free to operate. The flexible element is so ar ranged that the punching in of the combination lock or the burning of a vault door will cause it to be severed.

In Figures and 6 of the" drawings, I have shown a slightly modified form of my invention in which form, I provide a pair of bolts 94 which are screwed into the vault The bolts 24 are provided with sleeves Resting upon the sleeves .25 and below the heads of the bolts 24 is a frangible plate 526.. H .The plate 26 is preferably made of glass or some other brittle material. he plate 26 1 its-provided with an opening 27 near its cenmin which opening is mounted a stud PS.

Thestud 28 provided with an opening 29 through which may be extended the flexihle element 16.

In this form of invention the flexible element 16 passes below the plate 26. The stud 99 is held in position against movement. in one direction by the combination mechanism Ll. and against movement in the opposite direction by the flexible element 16.

The punching in of the combination lock will cause the stud to be moved inward, thus breaking the frangible plate .26 and releasing the stud '28- As soon as the stud 2Q r leased the auxiliary locking device is then operated.

The ends of the Flexible element 16 is also released when stud :28 is moved, and the openlng n1 stud 28 permits the flexible element 16 to slide,

through it in event the flexible element is released due to burning gases being applied tothe door.

It will he scen that my'devire is very sim-. ple and that I have provided a very efficient device-l0! releasing the flexible element so as to permit the auxiliary locking device to operat when the combination mechanism is punched inward, u! the flexible element is burned. 4 I

Some changes maybe made in the construction, and arrangement of the various aarts of my device without departing from the'e'ssential features and purposes of my invention. and it is my intention to cover by my claims, any modified forms of structure or usc'of mechanical equivalents, which may be reasonably included within'their scope.

I claim as my invention? 1. In combination with a vault or safe.

door having-locking and combinationmechanisms thereon. 'a1i"a'uxil1ary lOClUII device and a flexible elei'fientfor normally holding the auxiliary locking device inoperative, &

means for severing said flexible element, said last means includinga plate extended over the combination lock, a stud having an openingtherein extended through the plate and having the flexible element guided therethrough, whereby the inward movement of the combination lock will cause the plate to shear. the flexible element.

2'. In combination with a vault or safe door having locking and combination mech- .anisms thereon, an auxihary locking device and a flexible element for normally holding the auxiliary locking device inoperative, a means for severing said flexible element, and said last means including a plate extended over the combination lock, a stud extended through an o )euin in the )late. the o Jenin in the plate being of substantially the same size as the stud, said stud having an openmg therein through which the flexible element is guided whereby the inward move ment of the plate; due to the punching in of the combination lock. will cause the flexible elcmentto be sheared.

v 3. In con'ibination with a vault or safe door having locking and combination mechanisms thereon. an auxiliary locking device and a flexible element for normally holding the auxiliary locking device inoperative, a frangible plate extended over the combination lock, a guide stud having an opening therein mounted on the frangible plate. said flexible element being extended through the guide stud. the parts being so arranged thatthe punching in of the combination lock will break the frangible plate; thereby releasing the guide stud as specified. v

4.111 combination with a vault or safe (1001' having locking and combination inechparts being so arranged that the punching i :inisins thereon, an auxiliary locking. device of the combination lock will break tl'. antl ajflexible element for normally holding frangible plate and release the flexible ah the auxiliary locking device inoperative, a, nient for permitting the auxiliary lockin frangible plate extended over theconibinadevice t0 Operate.

tion lock, means on said frangible plate for ES DPS, I 'ffi' 'i guidingvthe' flexible element thereover, the WILLIAM C. DILLON. 

